The class gathered around the teacher for a game of "Guess the Animal". The first picture the teacher held up was of a Lion. "Okay," she said brightly, "can anyone tell me what this is?" "I know, I know, it's a Lion!" yelled Eddie. "Very good, Eddie. Now, who knows what this animal is called?" "That's a Tiger!" piped up Jennifer. "Right, again. And what about this animal?" she asked, holding up a picture of a deer. Silence fell over the class. After a minute or two, the teacher said, "I'll give you a hint ... it's something you're mother calls your father". "I know, I know," screamed Little Johnny, "It's a horny bastard!"